Had the full system fitted and mapped on the gen 4 at Dave Woods Racing.
Not too shabby, going back in February fresh from track day to fettle some more.
Engine was tight having only done 350 miles, where he said it should be over 200bhp when I go back.
(https://i.postimg.cc/G4j53vvh/Dyno-run-01.jpg)[/url]mg.cc/G4j53vvh/Dyno-run-01.jpg[/img][/url][/img]
👍
I got over 204bhp from my 2012 S1RR within a few hundred miles past first service with a full system and PCV.
I'd be surprised if you don't get >200....
I can't see the attachment clearly on my phone. What did it make this time?
It went from 197.1 to 198.5 and 87.7 to 90.5 on the torque.
I'm not a BHP fiend so not worried about that, that's all subjective anyway.
Just interested in getting the fueling right, which is pretty much spot on.
My fuelling was spot on.
For a 2019 model that seems very low.
Standard bikes were pulling 207bhp on early Dyno runs...seems strange you are getting less
Quote from: Alzo on November 15, 2019, 11:12:54 AMStandard bikes were pulling 207bhp on early Dyno runs...seems strange you are getting less
Some dynos are more generous than others. And other variables to take in to account too. Air temperature etc.
As above. Plus he was pushed for time so only concentrated smoothing the lower end out. I'm sure that small top end gain was just literally adding the system.
Yeah DWR's dyno reads pretty truthful unlike a few that Ive seen results from. Does the bottom end feel better now?
Quote from: Maddog on November 15, 2019, 05:50:27 PMYeah DWR's dyno reads pretty truthful unlike a few that Ive seen results from. Does the bottom end feel better now?
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That's good to know to because he did my S1000RR on it
Quote from: GRUMPY on November 15, 2019, 11:53:29 AMQuote from: Alzo on November 15, 2019, 11:12:54 AMStandard bikes were pulling 207bhp on early Dyno runs...seems strange you are getting less
Some dynos are more generous than others. And other variables to take in to account too. Air temperature etc.
Yip...some under read too. 😊
Quote from: Maddog on November 15, 2019, 05:50:27 PMYeah DWR's dyno reads pretty truthful unlike a few that Ive seen results from. Does the bottom end feel better now?
I can't honestly say. The bike was limited to 9k revs. I took it for its first service and got it un locked, then straight to the Dyno.
Dave Wood Racing dyno is within 1 BHP of the BSB dyno
How accurate is the BSB Dyno?
I'd presume pretty accurate? I've no idea.
No such thing as an accurate dyno really. You could run the same bike on the same dyno a week apart and get quite different numbers. Some read lower than others though. Different smoothing factors, SAE vs DIN. Lots of variables.
Update,,,
Had it done a couple of weeks ago. Now 215.2
Dave reckons 220 is achievable if he can have it for a week. I'm in two minds as to what effect 220 could have on the engine long term.
(https://i.postimg.cc/hfJJN81g/IMG-20200223-WA0002.jpg) (https://postimg.cc/hfJJN81g)
I can't see 5bhp being any harder on the engine.
You wouldn't think so. But it started out at 197.
Dave wouldnt map it if there was a high risk of anything happening as one bad job and he will lose loads of work. With mapping, theres always a risk but if done properly on a rolling road, AFR sensors etc by someone who knows what they are doing then id go for it. Dave does loads of R&D on new bikes and loads of work for race teams so id trust him with any of my bikes.
Yeah, just I've never dyno'd anything before so all new to me.
All said top end power to the detriment of elsewhere may not be the most desirable thing to do.
Quote from: David W on December 16, 2019, 08:28:54 PMNo such thing as an accurate dyno really. You could run the same bike on the same dyno a week apart and get quite different numbers. Some read lower than others though. Different smoothing factors, SAE vs DIN. Lots of variables.
This .... even the tyre on the bike can make/rob 2-5bhp ... the temperature of the dyno cell, the temperature and speed of intake air, the fuel the bike was loaded with, the --- you get the idea.
The important thing is to have work done in the same dyno (assuming you like the service etc) and then you can compare each run / improvements in a moderately controlled environment.